Chapter 568

It's very hot in July. Xu mang is afraid of the heat. At this time, he is wearing a sun hat, a polarizing mirror for driving, and also a mask. He is basically armed for barbecue. Of course, the mask is temporarily added by Xiao man, who is heartbroken by his husband.

But...

this is more hot and airtight... The hot air is stuffy inside.

Xu Mang and Chenxi just set up the barbecue, poured a little gasoline on the charcoal, and soon it burned up, but... The whole process was the two men working, and the other two boys were sitting on the edge, just like the master.

"Chenxi?"

"What about your friend?" Xu mang had a lot of opinions on this, but he said, "what's the origin?"

"..."

"they are the second generation of rich people, and they are good at reading. In addition to studying in the Ivy League, they naturally feel that they are superior to others." Chenxi took a look at the two boys: "they seem to be from the University of Pennsylvania, it seems that they are still astrophysics majors."

Xu Mang:???

Sleeping trough!

Is that amazing?

However, according to Xu Mang's knowledge, in the United States, the first astrophysics major is Princeton University, the second is California Institute of technology, the third is the University of Chicago, and the University of Pennsylvania ranks twelfth in this major.

Not so good,

"then..."

"what about the two girls?" Xu asked curiously, "what school do you study in? What's your major? "

"Er..."

"one Harvard, another Yale." Chen Xi said: "Mathematics and physical optics, in short, these people are science, and mangge you are almost."

At this time,

Xu mang suddenly thought of the problem he had encountered. It is impossible to estimate the metamaterial of the wire... These four people can not do it alone, but they can help to calculate various data of extrasolar objects, just to solve the problem of oxygen fugacity.

Not bad, not bad... This barbecue is a little rewarding!

But it seems that the four are very proud. They need to be convinced.

"Chenxi?"

"If I say I am Xu Mang and want them to participate in a research project now, do you think your four friends will join the research project with a face of worship?" Xu mang asked cautiously.

"I don't know... Try it." Chen Xi said.

Try it?

What if people don't want to?

Isn't it a shame?

Xu mang can't take his face to joke, these days... Face is more important than life, blindly open his name, in case of other people's rejection, this is more than losing face so simple, according to his own character estimate, the next second swallow dung suicide.

Forget it,

take a step and have a look, but these four tool people are really good.

Soon, the barbecue meeting was officially launched. According to the previously agreed labor distribution, four boys started the so-called roast food around the barbecue stove. Xu mang basically roasted vegetables. Yang Xiaoman didn't like meat, especially the smoked meat.

According to Xiaoman, eating more barbecue will cause fire. Once you get a fire, you will get acne on your face, and a long acne will become very ugly. Then you need to use a variety of acne products, but also be very careful not to leave acne marks. In short, acne is very painful for Xiaoman.

It has to be said,

Xiaoman is an ordinary girl. Although she has an angel's face, she is praised by many gourd eaters as an angel who falls into the world. Although her chest touches the ground first, Xiaoman will eventually have the same troubles of all women.

But this kind of girl is very real, at least Xu mang likes such a girl very much, if everything is not picky, then what's the meaning?

"Two brothers?"

"What's your name?" Xu mang asked with a smile.

"Don't give me your surname Tong. I'll give you a single name, min." With glasses, especially gentle boy, a face without expression said.

"My name is Lu, and my name is Bo." That looks the same gentle boy, indifferent to say.

Xu Mang: (° ー)

How do you feel that it's not right...

alas?

It's forced, isn't it?

In the face of the cold reply, Xu mang did not continue to take care of the two people, quietly making barbecue for Xiaoman enjoying the cool in the shade of the tree. At this moment, the noble Professor Xu became the exclusive tool person of the violent airport.

brush a layer of oil and turn the corn upside down. Xu mang sits on the chair waiting for the corn to change due to the high temperature.

"Tong min?"

"The professor gave us a subject, according to the metric of the expanding universe DS ^ 2 = DT ^ 2-r ^ 2 (DX ^ 2 + dy ^ 2 + DZ ^ 2), in which the possible spatial curvature is ignored, and the specific form of the function R (T) depends on the material content of the universe.""So how to solve the next four problems?" "These four questions... I think it's a little too much. It's the first problem to calculate the function ratio of energy and momentum and time of a particle with mass m at t0."

"Alas

"This is the first question... It has been difficult to reach the stage of absurdity. The following three... Prove that the thermal equilibrium state is composed of interacting and massless particles, while the universe composed of mass particles does not maintain thermal balance, and determine the speed and energy of neutrinos..."

"isn't this fatal?" Lu Bo said bitterly: "I feel that the professor is playing with us, which is the knowledge of astrophysics, this is the content of theoretical physics, I asked... This is the content of relativistic cosmology."

Tong min gave a bitter smile and said in silence, "what can I do? This is a task assigned to us, and we must make an explanation... We must also make calculations and written explanations, and record them in the scores. When we meet this kind of neurotic Professor, we can only accept bad luck. "

Suddenly,

anger became a little dignified.

"Ah?"

"Or... Let Liu Yan and Zhao pengpeng help us solve these problems?" Lu Bo said: "it involves a lot of mathematics. It happens that Liu Yan is a graduate student majoring in mathematics at Harvard. With her, at least mathematics is not a problem."

"But..."

"we are having a barbecue." Now, it's not polite to others to barbecue, but to solve the problem of cosmology.

"Chenxi..."

"please help us bake the rest of the things." Lu Bo reluctantly said: "now Tong min and I are ants on the hot pot. We seldom meet Liu Yan and Zhao pengpeng. We want them to help us solve the problem... Sorry."

Chenxi that gas, special... Labor came to you to barbecue, you actually ran to solve the universe problem, the universe is related to you two what matter, even if the universe is about to be destroyed, there is no double connection in, they will save the universe!

"Go, go!"

Xu mang said with a smile: "what do you want to eat? I'll cook it for you

Seeing Xu mang with a face of charity, Tong min and Lu Bo's affection for him rises sharply.

"Whatever you want."

"Tong min and I can eat anything, thank you... Man!"

As a result,

they left the barbecue.

Looking at the two people's back, Chen Xi asked suspiciously: "brother mang... This... Let them go?"

"It doesn't matter."

"These four people... Can't solve those problems." Xu mang said with a smile, "what's your major in Mordor Normal University?"

"Er..."

"it's just a muddle through life. Originally, my father arranged for me to go to America. I didn't want to go... And insist on staying here." Chen Xi said: "it's not a big problem... It's mainly a little bit wrong with Tianmei. Her grades are stable at Qingda University. As a result, she came to Jinan University to study."

"They are all famous schools."

"It doesn't make any difference." Xu mang said with a smile: "if you feel some guilt, you can make up for Guo Tianmei more in the future. By the way, your little sister man is very dissatisfied with your practice in this matter. A 20000 yuan bag sent Tianmei away. At that time, your sister was almost angry."

Chen Xi shrunk his head and carefully said, "will I be beaten?"

"Not so much."

"You can't get away with one count." Xu mang seriously said: "you don't have resentment, your little sister man is such a person, the more concerned about people, she will be more irritable, you see, I can't move to be beaten by her, this is how your little sister man cares about people."

Sleeping trough!

Hard work... Brother mang!

"Brother mang?"

"What level do you have now?" Chen Xi asked curiously: "I often see you on the news, and now No. 1 middle school has put your award in the most prominent position. I think... The headmaster would like to stick your head picture on the school building."

"Ha ha..."

"the level of international famous scientists." Xu mang calmly said: "titles are too many... Can't count."

Hearing Xu Mang's words, Chen Xi can't help feeling... On pretending to force this, brother Xu mang pinches dead... Basically invincible.

At the same time,

Yang Xiaoman and Guo Tianmei were chatting in the shade of a tree. They suddenly saw two barbecue tool people sitting next to two other returned girls with chairs. The four began to discuss what problems they had. They even took out their tablet computers from their satchels and began to analyze the problems.

What's the situation?

Not good barbecue, suddenly began to solve the problem?Is...

are those who have studied so boring?

Does barbecue need accurate calculation?

"What's the situation?"

"What's the matter with these four guys?" Yang Xiaoman frowned and said to Tianmei, "what are you doing together?"

"I don't know."

"But one thing is certain that the four are not interested in barbecue." Guo Tianmei said: "in a word, these four people are very high-end, especially the two boys. They always pull out the concept of black hole, and then the four fight for this concept in the car for a long time, as if... I don't know what the problem is, it seems to be a calculation problem."

"Cut!"

"I didn't mean to belittle these four people. You Xu mang is an authoritative expert in this field." Yang Xiaoman's face showed disdain expression, a face disdainful ground said: "forget it... Ignore these four people, anyway, is not the same way."

On the other side,

Tong min, Lu Bo, Liu Yan and Zhao pengpeng are in a dilemma. They are not interested in barbecue, so they take this opportunity to solve the concept of expanding universe in relativistic cosmology, but... They encounter obstacles.

If the energy and momentum are E0 and P0 respectively, assuming R (T0) = R0, then apart from being affected by the above metric, the particles will propagate freely. How can the ratio of energy and momentum to time be calculated?

How can the kinetic energy of particles be described as kinetic energy?

How to calculate the particle energy from R ^ 2 (DRDR) = constant?

They were in an awkward predicament when they calculated the functional relationship between energy, momentum and time of the expanding universe.

For half an hour,

for half an hour, there was no clue.

At this time,

a voice comes out from behind.

"Your mutton kebabs are ready

Holding a mutton kebab in his hand, Xu mang stood on the edge with a smile on his face. He suddenly stretched out his head and looked at the calculation process on the hands of the four people and asked curiously, "what are you doing?"

......

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